Membrane structure and method of making

Details Membrane structure and method of making Membrane structure and method of making

B - Operations, Transporting

01

D

B01D 69/12 (2006.01) B01D 67/00 (2006.01) B01D 71/02 (2006.01) B01J 19/24 (2006.01)

Patent

CA 2630151

A membrane structure 10 is provided. The membrane structure includes a first layer 12 having a plurality of interconnected pores 14; and a second layer 16 disposed on the first layer. The second layer has a plurality of unconnected pores 18. Each of the unconnected pores is in fluid communication with at least one of the interconnected pores of the first layer. A method of making a membrane structure is provided. The method includes the steps of providing a first layer having a plurality of interconnected pores; and disposing a second layer on the first layer. Disposing a second layer includes depositing a conducting layer on the first layer; and anodizing the conducting layer to convert the conducting layer into a porous layer.

L'invention concerne une structure de membrane. La structure de membrane comprend une première couche comprenant une pluralité de pores interconnectés ; et une seconde couche disposée sur la première couche. La seconde couche comporte une pluralité de pores non connectés. Chacun des pores non connectés est en communication fluidique avec au moins un des pores interconnectés de la première couche. L'invention concerne également un procédé de fabrication d'une structure de membrane. Le procédé comprend les étapes consistant à constituer une première couche comprenant une pluralité de pores interconnectés ; et à disposer une seconde couche sur la première couche. La disposition d'une seconde couche comprend les étapes consistant à déposer une couche conductrice sur la première couche et anodiser la couche conductrice afin de la convertir en une couche poreuse.

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